Bolt making machine



Nov. 1,2, 1935. .1. H. FRIEDMAN 2,020,660

BOLT MAKING MACHINE Filed Feb. 20,1934 5 sheets-sheet 1 mnentor Jef/N HP/e/f DMA N.

Gttorneg Nov. 12, 1935.A .1.1-1. FRIEDMAN BOLT MAKING MACHINE Filed Feb.2o, 1954 5 sheets-sheet 2 Srmentor A ,LL%/-- Cittorneg NOV. 12, .A HtFR|EDMAN 2,020,660

BOLT MAKING MACHINE A Filed Feb. 20, 1934 5 Sheets-Sheet, 5

3nnentor '5 sheets-sheet 4 Filed Feb. 20, 1934 Gttorneg BOLT MAKINGMACHINE Filed Feb. 20. 1934 5 Sheets-Sheet 5 nventor (Ittorneg PatentedNov. l2, 1935 PATENT OFFICE 2,020,660 4 BOLT MAKING MACHINE John H.Friedman, Tin, Ohio, assig'nor to The National Machinery Company,

corporation of Ohio Tifin, Ohio, a

Application February 20, 1934, Serial dNo. 712,220 43 Claims. (Cl. 1012) This invention relates broadly to machines for making bolts, screwsand like headed articles, such for example as the machine disclosed inthe copending application of Earl R.. Frost, Serial No. 639,054, ledOctober 22, 1932, and is particularly concerned with new and improvedcoordinated blank transfer and pointing mechanism for such machines.

An object of the invention is to provide in machines of the above-notedtype improved means for automatically effecting the transfer of headedblanks from one station or position of operation to another such stationor position, and fabricating mechanism coordinated with said transfermeans in a manner such as to readily effect fabrication of the blanksalong the path, or during the process of transfer. In the embodimentshown in the drawings, the headed blanks are transferred from apositionl at which the head-trimming operation is effected tothread-rolling mechanism, and while being so transferred, the blanks aresubjected to the action of pointing mechanism, it being a more specificobject of the invention to provide improved coordinated blank-transferand pointing means operatively associated with a bolt-making machine. Itwill beunderstood, however, that the initial transfer movement could beeffected in relation` to operations other than the trimming operationand that transfer could be effected direct from one point to anotherwithout interruption for fabricating purposes without departing fromrthespirit or scope of the invention.

Another object of the invention is to provide in bolt making and likemachines improved pointing mechanism and coacting blank-feeding anddischarge mechanism.

Another object of the invention is to provide an alternate type ofblank-transfer and pointing mechanism relatively to that disclosed inthe application above noted and one which may be b'etter adapted forcertain installations.

The foregoing and other objects and advantages will become apparent inview of the following description taken in conjunction with thedrawings, wherein:

Figure 1 is a view in side elevation of a bolt making machine embodyingthe invention;

Fig. 2 is a plan view of Fig. 1 with the rear extremity of the machineomitted;

Fig. 3 is a fragmentary view in side elevation taken substantially onthe line 3 3, Fig. 2;

Fig. 4 is an enlarged transverse vertical section taken substantially onthe line 4 4, Fig. 3;

Fig. 5 is an enlarged fragmentary View in side elevation of the pointingmechanism and adjacent coacting parts illustrated in Fig. 1;

Fig. 6 is a sectional plan view taken substantially on the line 6 6,Fig. 5; y

Figs. 7, 8 and 9 are views in sectional elevation 5 taken respectivelyon the lines 1 1, 8 8, and 9 9, Fig. 6;

Fig. 10 is an enlarged detail view in central vertical section of achuck assembly; and Fig. 16a is a sectional View taken on the line I0a.0a, Fig. 10; 10

Figs. 11 and 11a are enlarged fragmentary plan views, more or lessdiagrammatic, of the transfer track and coacting blank-transfermechanism adjacent the point where the blanks are transferred to thepointer chuck, showing dif- 15 erent positions of said mechanism.

For the purpose of illustration, the improved transfer and pointingmechanism is shown as applied to a bolt making machine of the typedisclosed in the copending application above noted, 20 it beingunderstood that it could be used with other types of machines formanufacturing headed articles which embody parts adaptable for operativeassociation with the present mechanism.

Referring to the drawings in detail, the refer- 25 ence numeral 5generally designates the bed frame of the machine, in which a headerslide 6 is mounted for longitudinal reciprocation through the medium ofa crank shaft 1. The

forward extremity of the bed frame 5 is provided 30 with a die breast 8which has mounted thereon a plurality of aligned dies 9a, 9b and 9c. Thedies 9a and 9b are extruding dies in the type of machine here shown,while the die 2c is a holding or supporting die. Bolt blanks are sev- 35ered from suitable wire or rod stock and are transferred to the rst dieSa where a portion of each blank is extruded to a diameter substantiallyequal to the overall diameter of the threads of the finished article.The blank is then trans- 40 ferred to the second die 9b where theportion of the blank so reduced is further extruded to a diametersubstantially equal to the pitch diameter 0f the threads of the finishedarticle, the unreduced portion of the blank being upset to form the 45head of the blank. The third or holding die 9c cooperates with a holowtrimming punch lDc on the header slide to trim the blank to the desiredpolygonal shape. The members Illa' and wb are punches in the forward endof the header slide 50 which co-operate with the extruding dies 9a and9b to drive the bolt blanks into said dies. Suitable transfer mechanism,generally indicated at Il, is provided for transferring the blanks fromone die to another in synchronism with the movement of the header slide.The blanks are ejected from the dies by means of suitable ejectors 12a,I2b and I2c, the said eiectors being actuated in the present instance bymeans of rockerarms or pushers I2d which are provided with linkage andcam mechanism (not shown) whereby the arms may be operatively connectedwith, and actuated from the crank shaft 1.

The foregoing parts are common to machines of this type and theiroperation is well understood by those having a knowledge of the art.

As the head of each successive blank is trimmed to the desired polygonalshape by the hollow trimming punch |00, the said 'blanks are ejectedfrom the holding die 9c into and through said punch and successivelypass into a blank-guiding passageway I3 provided in the header slide.lIn the machine shown, the passageway is provided with a hollow tubeI3a, note Fig. 4, which terminates in a tapered outlet extremity I3bwhich projects slightly above the top surface of the slide and fits intothe mating end of a tube or conduit I3c forming a continuation of thepassageway I3. The tubes or conduits I3a and I3c are preferablyremovably installed so that 'they may be replaced by tubes of varyingsizes to accommodate special blanks.

The tube or conduit I3c is given a particular shape to facilitate thepassage of bolt blanks therethrough, and accordingly the elbow portionthereof merges with a substantially straightlength but preferablyslightly downwardly in'- clined portion I3d terminating in an inclineddischarge extremity or chute I3e. The advantages of this constructionwill be referred to in the subsequent brief description of the operationof the mechanism for effecting transfer of the blanks from the trimmingpunch to the pointing mechanism.

The receiving end of the tube I3c is supported on the header slideforfree rotational movement preferably by a safety assembly such as thatshown more or less in detail in Fig. 4. This assembly comprises ahousing I4, a sleeve I5 having a split I5a at its upper end and a angeI5b at its lower end, a spring I6, a clamp I1, a bearing ring I8, and aretaining and bearing ring I9. The split sleeve I5 together with thespring I6 and bearing ring I8 thereon is assembled in the housing I4 andthev latter secured to the header slide. Sleevev I5 receives the oneextremity of tube I3c and is adjustably secured thereto by clamp I1. Inthe event bolt blanks become jammed in the tube I3c the pressure of theincoming blanksfromthe tube I3a will force the tube upwardly togetherwith the ysleeve I5 against the tension of spring I6. When the tube hasbecome displaced to a predetermined height, it contacts a safety switch,not shown or described in the present application, and stops themachine. It will also be seen that the tube or conduit I3c is held inaccurate registration with the tube I3a while at the same time beingpermitted free rotation with respect to the header slide.

The portion I3d ofthe tube I3c has its lower wall slotted, as at 2D, sothat when theblanks reach this portion, the Shanks will drop through theslot and the blanks will travel in a suspended upright position, noteFig. 3. The discharge extremity of the said tube I3c is also formed witha. slotl or recess 2l, so that said extremity may slidingly engage.alguide plate or analogous member 22, note particularly Fig. 5g which is.with a downwardly-inclined portion 24a, and

secured tor the inner walls of this portion and 5 extending upwardly andcurving around the top of the bracket are a pair of rails defining atrack 25 which is provided with a top guard 26. The outer rail of thecurved portion of the track 25 is secured to a spring-pressed section orgate 10 21 which isv pivoted or hinged at 21a on the bracket 24. Thetension 4oft-he gate orsection 21 is such as to resist normal pressureof the traveling blanks, but in the event the blanks jam andthe gate issubjected to abnormal orrexcessali pressure, it will open and permit ablank or blanks to dropclear of the track and relieve the latter ofcongestion.

The operation of the blank-transfer mechanism above described issubstantially as follows: 20

When the header slide advances and the hollow trimming punch I0c engagesand trims the head of a blank held by the holder die 9c, the ejector pinI2c pushes the blank through the punch and into the tube I3a whichdefines the 25 passageway I3 shown in dotted lines in Fig. 1. In thismanner the blanks are successively trimmed ,ori otherwise operated uponand progressed -through-the tubes I3a and I3c. When the blanks reach theslot 20 of the tube I3c, the 30 shanks thereof drop into said slot andfrom thereon the blanks are advanced in suspended position, note thelineof blanks B in Fig. 3.

The substantially straight slotted portion I3d of the tube or conduitI3c terminating in the 35 downwardly inclined discharge extremity I3c,insures proper positioning and a smooth transfer action of the blanksand prevents jamming vof the latter in the elbow portion of the tube,since when the ejector I2c propels a blank through the 4 tubes I3a andI3c, the initial or leading blank will have its speed gradually retardedby the elongated substantially horizontal portion I3d until it cornes torest with its shank suspended in the slot 2l), the successive blanksabutting against 45 one another as shown in Fig. 3 and lining up alongthe straight portion of the conduit. As the succeeding blanks areejected through the holand while a vertical column of blanks may be G0`built up in the passageway I3, there will be no blanks in the elbowportion of the tube I3c since the force of impactv of an incoming blankat the base of the column will propel the blank at the head ofv thecolumn around the elbow. It will 65 be understood that the portionl orlength I3d of the tube or conduit I3c need not necessarily be nicelycontoured or lie in an exact horizontal plane to effectively perform itsfunction.

As the blanks slide down the incline I3e of the 70 tube I3c, they buildup on the curved portion of the track 25 until the leading blank isprogressed to a point where it is pushed off onto the in- `cli-nedor'chute portion of said track, whereupon v the blanks are successivelypushed oli? or diswhich is pivotally connected to the one arm of abell-crank lever 28a, the latter being mounted on a pin 28h, which isjournaled in a frame or bracket extension. The other arm of the bellcrank 28a is normally urged toward return position by means of aspring-pressed plunger 28o.

A finger 29 having a forked end which straddles the lower end of thetrack 25 is arranged to push the blanks from said track between the jawsof `a chuck assembly to be described, and also to serve as an alternategate with respect to iinger 28. Finger 29 is pivoted at its rear end ona pin 29a which is mounted in a bracket 30 clamped on the one end of ashaft 3l, the latter extending across to a point adjacent the headerslide and carrying a cam roller 32 at its opposite end which rides on anelongated cam 33 secured to the slide, note Fig. 2.

The lever 28a is actuated against plunger 28e by means of a contactmember in the form of a strap 28d which is arranged to move with thepusher finger 29.

Fig. l1 shows the relative positions of the fingers 28 and 29approximately at the time the lat-- ter finger has reached its advancedposition. In transfer mechanisms embodying an inclined track or chutewhich delivers blanks to a flat horizontal plate or feeding positionupon which the blanks are moved by pushers, there is always a tendencyfor blanks to stick or jam in the angle between the inclined andhorizontal positions of the track before the foremost blank reaches aposition to be engaged by the pusher. ventthis it is customary to permita series of blanks to build up in the inclined position of the' track sothat their weight presses the foremost blank into alignment with thepusher. This construction, however, is also objectionable in that itpermits the head of one blank to get on top of f the next succeedingblank and in many cases to track at the end of the chute is turned at anangle so that the nger 29 acts in a straight line and the nger 28 actsalong a line determined by the crank 28a and the support for finger 28.When the "finger 29 retracts or moves back, the parts assumeapproximately the positions shown in Fig. 11a, the nger 2S being urgedforward by the spring-pressed plunger 28e. Up until the time the finger29 clears the path of the leading blank, the latter bears against theside of said finger, and when finger 29 clears the blank, the finger 28snaps the blank forward under spring pressure and at the same time movesinto the path of the succeeding blank. When the linger 29 advances, itengages the blank at opposite extremities, thereby obvlating cooking,and pushes it into a holding chuck, (a description of which ishereinafter given) cam strap 28d contacting the one arm of bell cranklever 28a and retracting finger 28, allowing the succeeding lblank tomove forward against the side of the finger 29.

The supporting pedestal'or bracket 24 together with the track and guideplate assembly car- To pre-v ried thereby are mounted on a supportingrbracket or casting 34 which at one side is hinged or pivotally connectedat 35 to the adjacent stationary frame structure and at its oppositeside is provided with a hand screw 36 which screws into the 5 frame ofthe pointer housing, later referred to. The bracket 34 also carries thegate finger assembly 28-28c, and whenso desired, the bracket 34 togetherwith the parts carried thereby may be swung back to facilitate 'accessto the mechanism 10 for replacement or repair. The bracket 3! which Icarries the pusher finger assembly may be loosened and rotated clockwiseon the shaft 3| to back off the nger 29 when it is desired to swing backto the bracket 34. l5 The pointer assembly and coacting parts are shownmore or less in detail in Figs. 7, 8 and 10. First considering thepointer tool assembly, this in its preferred form comprises asubstantially cylindrical hollow casing or housing 31 which is 20adjustably secured to a supporting bracket 38 by means of screw bolt 39,bracket 38 being secured to the side of the main frame 5. A coverv plate40 is provided to permit ready access to :the interior of casing 31.'The bolt 39 may be 25 loosened and the pointer casing and tool carriedthereby adjusted vertically to accommodate varying lengths of boltshanks. A web 4I is extended or built laterally into the casing 31 andis provided with a bore 42. In the lower end of the 30 casing 31, amotor 43 is mounted, which is adapted to drive a shaft 44, the latterbeing extended through the bore 42 upwardly beyond said web 4i androtatably supported by bearings 45. A sealing member 46 is mounted oversaid bearings 35 and prevents chips and like particles from working intothel bearings and the bore 42. At its upper extremity, the shaft 44 hassecured thereon a cutter head 4l provided with a plurality of cuttingmembers or knives 41a having their cut- 40 ting ends arranged in offsetrelation to one another and adapted to engage and form a conical portionon the ends of the bolt blanks. Below the cutter head and communicatingwith the open portion of the casing around said head 45 is a passagewayor opening 48 for the discharge of chips, lubricating material and thelike, said opening gradually converging toward the lower extremity ofthe casing and terminating in an outlet chute 48a. The upper extremityof the 50 housing 3l is provided with a removable cap or cover 49 havingmounted in the central portion thereof a guide bushing 59 formed with anopening adapted to the diameter of the blanks being produced. Access maybe gained to 'the cutter 55 assembly by removing the cap 49. The bushing50 may be replaced by other bushings having openings therein of thedesired diameter in accordance with the blanks being produced.

The bracket 38 is formed with a side extension 60 38a which is built upto provide a housing 38h, which at its upper end is provided with alateral extension 38o and a removable cap or cover 38d.

A chuck assembly is mounted in a part of the bracket extension 38o andin its preferred form 55 comprises a cylindrical housing block 5.! whichhas a sliding t in said extension. A pair of gripping jaws 52a and 52hare mounted in the skirt portion 5la; of block 5l', jaw 52a beingpivotally mounted while the jaw 52h is station- 70 arily secured againstmovement with respect to its coacting jaw 52a. The upper extremity ofthe movable jaw 52a is formed with a beveled cam surface adapted tocontact a spreader or cam block l53 which is secured on the lower end ofa rod 54. Rod 54 extends upwardly through a bore in the, block 5I inwhich bore a spring 55 is mounted, an abutment cap 56 being adjustablysecured on the upper end of the said rod. An adjustable abutment in theform of a screw 51 is mounted in the cover 38d in vertical alignmentwith the cap 56. A spring 58 tends to normally urge the movable jaw 52atoward the relatively stationary jaw 52h, said spring causing th jaws toexert suflicient pressure on a blank to carry the latter when the camblock 53 ceases to act when the chuck rises. An adjustable abutmentscrew 59 serves to determine the limit of closure of the jaw 52a.

The preferred contour of the gripping ends of the jaws is shown in Fig.10a. The incoming side of the jaw 52a, is provided with a pronouncedtaper or cam surface 52o while that of the coacting jaw is more or lessmodified. The incoming blanks are pushed between the jaws and the shankof each blank snaps into a recess 60 formed in the jaw 52a.

'I'he chuck assembly operates as follows: When the jaw-carrying block5lrises, cap 56 contacts abutment screw 51 and depresses rod 54 and cam 7under the blank-carrying pressure exerted by spring 58 so that a blankwill be carried upwardly with the jaws while the gripping pressure willbe sufliciently light as to permit the blank to be readily pushedlaterally clear of the jaws. When the jaw-carrying block 5I lowers,spring 55 exerts pressure on cap 56, and spreader cam- 53 engages andholds the jaw 52a under sufficient gripping pressure or tension toprevent displacement while being operated upon by the pointer tool. Thework-gripping tension of the jaw 52a may be regulated by adjusting cap56. The blanks are pushed between the jaws by the pusher finger 29, noteits relative position in Fig. 6, this phase being more fully describedin the general operation of the machine.

The sliding block 5| is connected to a reciprocating tubular rod 6I bymeans of a saddle block 62, the latter being connected to the block 5|by means of a. bolt 63 and being adjustably clamped to the said tubularrod at 64. A compression spring 65 is mounted in the tubular rod 6| andabuts at its upper end against the cover 38d and at its lower endagainst a block 66. The spring 65 serves as an impositivelyacting meansfor lowering the chuck assembly, the latter being raised by means of acam 61, see'Fig. l, which acts on a cam roller 68 mounted on a lever 69which is fulcrumed as at 18 on the main stationary frame of the machine.The cam 61 is connected to the main crank shaft 1.

The pointed blanks are conducted from the pointing mechanism to arollthreading mechanism and in the present instance are ejected from thechuck jaws 52a and 52h by means of the pusher finger 29 onto a track orchute 1I, note particularly Figs. 6 and 8, which is connected to abracket 12 forming part of the framel To maintain an orderly transfer ofthe blanks, one at a time, into the tube 15, a gate finger assembly ismounted adjacent the track similar to that described in connection withthe ltrack or chute 25. This assembly comprises a nger 5 18 which ispivotally connected to one arm 18h of a bell crank lever, the arm 18h ofsaid lever being actuated in one direction through a bell crank 19 bymeans of a cam projection 80 formed on a vertically reciprocating pitmanrod 8| con- 10 nected at its lower end to a lever 82 (see Figure 8), thelatter being actuated by means of a cam 83 which is connected to thecrank shaft 1, note particularly Fig. 1. The arm 18a works against aspring-pressed plunger 18e. y 15 A return spring 84 is provided forlever 82.

The rod 8I'is provided with a vertically extending recess 8Ia so thatthe Shanks of the bolt blanks will drop into this recess with the headsof the blanks resting on the side wall 8lb. A 20 latch spring 85 ismounted in a recessed portion of the transfer tube 15 and engages underthe heads of the upwardly progressed 'blanks and prevents returnmovement of the latter.

The tube 86 is adapted to convey the blanks 25 to thread-rollingmechanism generally indicated at 81, and which forms no part of thepresent invention. It will be obvious, however, that the tube 86 couldextend to any other desired station or point of deposit. 30-

gages and trims the head of a blank held by the 35 holder die 9c, theejector pin I2c pushing the blank through the punch into the passagewayI3 defined by the tubes [3a and 13C. The blanks are progressed throughthe tube |30 in a manner heretofore described and pass down thedischarge 40 extremity |3e of said tube onto the curved portion of thetrack 25, and line `up along said portion. The arcuate movement of thedischarge end of the tube I3c then discharges the blanks successivelyfrom the curved portion of the track 45 ontothe chute portion 25. Whenthe blanks reach the discharge extremity of the track 25, they aresuccessively released by the gate finger 28 and engaged by the pusherfinger 29 and pushed between the chuck jaws 52a and 5211,50-V

which at that time will be in a raised or elevated position inregistration with the track 1I, as shown in Fig. 8. As the pusher finger29 pushes a blank between the jaws, it discharges the pre. ceding blankonto said track, whereupon the 55 chuck lowers and the cam block 53causes the jaw 52a to progressively tighten on the blank while therecessed portion 60 centers the shank of the blank with respect to thebushing 50, and the blank passes through said bushing against 60 therotating pointing mechanism. As the chuck rises, the cam progressivelyreleases the grip through jaw 52a, while the spring 58 maintains thesaid jaw in resilient engagement with the blank until it is dischargedby contact with an 65 incoming blank.

The blanks are successively progressed along the track 1I until theyreach the discharge extremity thereof, whereupon the gate finger 18`releases the blanks successively from the end of 7o the track, theblanks passing through the recess 16 and dropping onto the wall 8Ib ofthe pitman rod 8|. The stroke of. the rod'8l is such as to deliver ablank to a point where its head will be engaged `by the spring 85, thuspreventing a re- 75 through thetube 15 and out and along the tube- 86,whereupon they pass to a suitable point of deposit or position wherefurther operationsmay be had thereon, such as the thread rollingmechanism generally indicated at 81.

From the foregoing i't willv be seen that I have provided coordinatedblank transfer arid pointing mechanism which is fully automatic in itsoperation, is positive in action and is 'insured against jamming. Suchmechanism is particularly desirable in machines where production ismaintained at a relatively high rateofspeed.

A marked feature of advantage in tne transfer and delivery mechanism isthat. the blanks are progressed in successive order along a vguiding andsupporting means which may be dependedupon to .keep the blanks undercontrol and deliver them in a position which facilitates propIv rpresentation to the pointingr tool or other fabrcating mechanism thatmay be operatively associated with orembodied in the machine. Thus theblanks are at no time subjected to the action of transfer devices whichrequire c enite or spotted positions of pick-up and delivery and whichare more or less unreliable in operationparticularly at high speedproduction. 1

While the mechanism is shown as being used in the production of blankshaving polygonal' shaped heads or heads which have been subjected to thetrimming operation, it will be un` derstood that the arrangement couldbe such as. to transfer the blanks from the upsetting or extruding dies,or'in other words thel blanks could be transferred to the pointingmechanism from positions other than that shown without departing fromthe scopey of the invention as definedv by the appended claims.

I claim: f

. 1. In a machine for making bolts and like headed articles, incombination, a bed frame, a header slide mounted to reciprocate in saidframe, cooperating tools carried by said slide and frame and adapted toact upon blanks, at least one of said tools being hollow, a passagewaycommunicating with said hollow tool and arranged to receive and guide aseries of blanks, means for propelling blanks through said hollow tooland along said passageway after the blanks have been-acted on by thetool, a pointing tool mounted adjacent said passageway, a. reciprocatingchuck mounted adjacent said tool, and means for successivelytransferring the blanks from said passageway to said chuck.

2. In a machine for making bolts and like headed articles, incombination, a bed frame, a header slide mounted to reciprocate in saidframe, cooperating tools carried by said slidev and frame andfadaptedvto act on blanks, lat least one 'of said tools being hollow, a conduitcommunicating with said hollow tool and ar- 'ranged to receive and guidea series of blanks,

means for propelling the blanks through said hollow tool and along saidconduit after the blanks have been acted on by the tool, a trackway'arranged tov receive the blanks from said conduit,

a pointing tool mounted vadjacent said trackway, a blank-gripping chuckmounted adjacent said pointing tool, meansfor transferring blanks fromsaidtrackway to said chuck, and means for reciprocating said chuck tobring the blanks into operative position withrespect to said pointingtool.

and adapted to act on blanks, at least one of `5 said tools beinghollow, a conduit communicating with 'said hollow tool and arranged toreceive and guide a series of blanks, a trackway forming an extension ofsaid conduit, means forpro` I -pelling' the blanks through said hollowtool and 19 along said conduit and trackway, a pointing tool mountedadjacent said trackway, a reciprocating chuck mounted above saidpointing tool, means for pushing blanks as they pass off an interruptedportion of said track into said chuck,- and means 1 5 for reciprocatingthe chuck to bring the blanks into operative positionwith respect tosaid pointing tool.

4.' In a machine for making bolts and like` headed articles, incombination, a bed frame, a 2.0 header slide mounted to reciprocate insaid frame, cooperating tools carried by said slide and frame andadaptedto act on blanks, at least one of said tools being hollow, aconduit communicating with said hollow tool and arranged to receive 25land guide a series of blanks, a trackway comsaid pointing tool, meansfor propelling blanks through said hollo ktool and along said. conduitand trackway, a reciprocating vpusher nger adapted to engage the blanksas they reach the end of said trackway and push them into the 35 chuck,and means for reciprocating the chuck to bring the blanks intooperativeposition with respect to said pointing tool.

5. In a machine for making bolts and like headed articles, incombination, a pointing tool,l a. trackway which terminates adjacent thepointing tool', a reciprocating chuck having springpressed jaws mountedabove said tool, a'pusher linger mounted to reciprocate adjacent the endl of the track to engage blanks as they pass from 5 the end thereof andpush them between the jaws of the chuck, and means for reciprocating thechuck to move thenblanks into and from operative position with respectto said pointing tool.

6.,In a machine for Amaking bolts and like 50 `headed articles, incombination, a bed frame, a

header slide mounted to reciprocate in saidframe, y cooperating toolscarried by said slide and frame and adapted to act on blanks, at leastone of 55 said'tools being hollow, a conduit commnicating with saidhollowtool 'and arranged to receive and guide a series oi' blanks, atrackway forming a continuation oi.' said conduit, meansv f y forpropelling blanks through said hollow tool 50 and along said. conduitand trackway after the blanks have been acted on by the tool, saidtrackway having an interrupted portion therein,

a pointing tool mounted beneath said interrupted portion, areciprocating chuck mounted above 05 said pointingtool, a pusher linger'mounted to reciprocate adjacent the end of the track at the interruptedportion thereof Mand push the blanks from the track between the jaws ofthe chuck, means for obstructing 'the end o1' the 70 track while thepusher finger is clear of the latter, and means for reciprocating saidchuck to move the blanks into and from operative position with respectto said pointing tool.

7. In' a machine for making bolts and like 75 6 headed articles, incombination, a trackway having an interrupted portion along the lengththereof, a pointing tool operatively associated with the machinedisposed beneath said interrupted portion and a reciprocating chuckmounted above said pointing tool, a pusher nger mounted to reciprocateadjacent the end of the track at the interrupted portion thereof (andpush each successive blank between the jaws of said chuck, means forreciprocating the chuck to move the blanks into and from operativeposition with respect to said tool, the return movement of said chuckbringing the pointed blanks back into alignment with said track and thepointed blank being pushed from the jaws of the chuck onto the track bythe succeeding incoming unpointed blank.

8. In a machine for making bolts and like headed articles, incombination, a bed frame, a header slide mounted to reciprocate in saidframe, cooperating blank-heading and shaping tools carried by said slideand frame and adapted to act on blanks, at least one of saidtools beinghollow, a blank-transfer system operatively associated with said machineand including a conduit 'communicating at its inlet end with said hollowtool and an interrupted trackway forming a continuation of said conduit,means for propelling blanks through said hollow tool after they havebeen acted on by the latter and along said conduit and trackway, apointing tool operatively associated with the machine and disposedadjacent the interrupted portion of the trackway, means operativelyassociated with said pointing tool and trackway for successivelyengaging blanks as they move along said trackway and moving them intoandout of operative position with respect to said pointing tool, andmeans for transferring the blanks from the track- Way to a desiredposition or station.

9. In a machine for making bolts and. like headed articles, incombination, a bed frame, a header slide mounted to reciprocate in saidframe, cooperating blank-heading and shaping tools carried by said slideand frame and adapted to act on blanks, at least one of said tools beinghollow, a blank-transfer system operatively associated with said machineand including a conduit communicating at its inlet end with said hollowtool and an interrupted trackway forming a continuation of said conduit,means for propelling blanks through said hollow tool after they havebeen acted on-by the latter and along said conduit and trackway, apointing tool operatively associated with 'the machine anddisposedadjacent the interrupted portion of the trackway, means operativelyassociated with said pointing tool and trackway for successivelyengaging blanks as they move along said trackway and moving them intoand out of operative position with respect to the pointing tool, atransfer conduit arnanged to receive the blanks at the discharge end ofsaid trackway, and means for elevating the blanks upwardly through saidconduit.

10. In a machine for making bolts and like headed articles, incombination, a bed frame, a header slide mounted to reciprocate in saidframe, cooperating blank-heading and shaping tools carried by said slideand frame and adapted to `act on blanks, at least one of said tools'being hollow, a blank-transfer system operatively associated with saidmachine and including a conduit communicating at its inlet end with saidhollow tool and an interrupted trackway forming a continuation of saidconduit, means for propeiling blanks through said hollow tool after theyhave been acted on'by the latter and along said conduit and trackway, apointing tool operatively associated with the machine and disposedadjacent the interrupted portion `of the trackway, 5

transfer conduit disposed at the discharge end of said track, anelevating rpitman mounted to reciprocate in said transfer conduit, meansfor reciprocating said pitman to elevate the vblanks upwardly in saidconduit, Aand means for pre- 15 Venting return movement of the elevatedblanks.

1l. In a machine for making bolts and like headed articles, a bed frame,a reciprocating L header slide, cooperating tools carried by said slideand adapted to head and shape blanks, at 20 least one of said toolsbeing hollow, a conduit communicating with said hollow tool and adaptedto receive and guide a series of blanks, a trackway communicating withthe discharge end of said conduit and having the receiving extremity 25thereof shaped arcuately and the discharge end thereof in the form of achute, a pointing tool disposed beneath the trackway adjacent the end ofthe chute, a reciprocating chuck for moving blanks into and fromoperative position with re- 30 spect to said pointing tool, areciprocating pusher finger for transferring blanks from said trackwayto said chuck, and means for periodically obstructing said chute tocontrol the gravitational discharge of blanks therefrom. 35

12. In a machine for making bolts and like headed articles, incombination, a bed frame, a header slide mounted to reciprocate in saidframe, cooperating blank-heading and shaping tools carried by said slideand frame and adapted'to 4o act on blanks, at least one of said toolsbeing hollow, a blank-transfer Ksystem operatively associated with saidmachine and including a conduit communicating at its inlet end with saidhollow tool and an interrupted trackway forming 45' a ,continuation ofsaid conduit, means for propelling blanks through said hollow tool afterthey have been acted on by the latter and along said conduit andtrackway, a pointing tool operatively associated with the machine anddisposed ad- 50 jacent the interrupted portion of the trackway, meansoperatively associated with said pointing tool and trackway forsuccessively engaging blanks as they move along said trackway and movingthem into and out of operative posi- 55 tion with respect to saidpointing tool, a blanktransfer conduit having an entrance openingtherein disposed at the discharge end of said ltrack, a. reciprocatingpitman for successively engaging the blanks as they pass into said open-60 ing and elevating them upwardly in the latter, means for periodicallyobstructing the end of the track, and means for preventing returnmovement'of the elevated blanks.

13. In a machine for making bolts and like 654 headed articles, incombination, a bed frame, a header slide mounted to reciprocate in saidframe, cooperating tools carried by said slide and frame and adapted tohead and shape blanks, at least one of the tools carried by the slidebeing hollow, 70 the header slide being provided with a conduitcommunicating at one end with said hollow tool and terminating at itsopposite end at the top of the header slide, a further conduit forming acontinuation of said rst-named conduit, means 'l5 for progressing.blanks through said hollow tool and along said conduit, thecontinuation conduit at the topof the header slide being displaceablymounted with respect to said first-named conduit to serve as a safetymeans in the event of jamming of bolt blanks inthe conduit.

14. In a machine for making bolts and like headed articles, incombination, abed frame, a

header slide mounted to reciprocate in said fram-e, cooperating toolscarried by said slide and' frame and-adapted to act on blanks, at leastone of the tools carried by the header slide being hollow, a transferconduit formed in said header slide and communicating at its inlet endwith the hollow tool, a transfer conduit forming a continuation `of saidpassageway atthe top of the header slide,

a trackway forming a continuation of said conduit, thereceiving'xtremity of said trackway being arcuately shaped and thedischarge extremityv of said trackway being inclined downwardly forminga chute, and a rotatably mounted connecting member for maintaining thedischarge end of said conduit in registration with the arcuately shapedreceiving extremity of said track.

15. In a machine for making bolts and like headed articles, incombination, a bed frame, aV

header slide mounted to reciprocate in said frame,

l, Vcooperating tools carried by said slide and frame and vadapted tohead and shape blanks, at least' one of the tools carried by said headerslide being hollow, a passageway formed in the header slide andcommunicating at its inlet end with said hollow tool, a conduitrotatably connected to the top of the header slide and forming acontinuation of said passageway, a relatively stationary track- Waymounted adjacent the header slide and having its inlet extremityconnected to said conduit and its discharge extremity downwardlyinclinedto provide a chute, the track being interrupted at the end of the chute,a pointing tool operatively associated with the machine and mountedadjacentthe interrupted portion of the track, a reciprocating chuckmounted above the interrupted portion of the track in alignment withsaid pointing tool, means for progressing blanks through said passagewayand conduit and along said track, said blanks passing by gravity downsaid chute,- means for periodically obstructing the end of the chute, apusher nger adapted to engage the blanks as they pass from the end ofthe chute and push them between the jaws of the chuck, means forreciprocating the chuck to move Y the blanks into and from operativeposition with respect to said pointing tool, the return movement of theVchuck bringing the blanks back into alignment with the track whereuponthe pointed blanks carried by the chuck are ejected therelfrom andadvanced along the track by the incoming unpointed blanks acted on bythe pusher finger, a transfer conduit 'adapted to receive the blanks atthe discharge end of said track, and

means for elevating the blanks upwardly through said last-named conduit.

16. In a bolt making machine, in combination, a track for headed boltblanks, means for deliver- 'ing blanks -to said track, means forpropelling blanks along said track, a chuck, said propelling meansoperating to move said blanks into and out of said chuck and a pointingtool mounted to operate below said track, said pointing tool fixedv withrespect to said track. l

17. In a bolt making machine, a bed frame, a reciprocating header slidemounted in said bed frame, cooperating tools on said slide and bed framearranged to act upon blanks, a passageway' frame, said tube beingarranged to receive headed blanks in axial alignment from saidpassageway and being formed through a portion of its length and at itsdischarge endwith a slot in its under side of such width as toallow theshanks of the blanks to drop downwardly therethrough and remainsuspended by their heads.

1,8. Bolt pointing mechanism comprising a` housing, a rotatable shaft insaid housing, a cutter head mounted on the end of said shaft, and aremovable and replaceableguide bushing mounted on saidlhousing. andhaving an opening for boltshanks in axial alignment with said cutter,head.

19. Bolt pointing mechanism comprising a-n elongated housing, a shaftrotatably mounted in said housing, bearings for said shaft, a motor fordriving the shaftmounted in the one extremity of -the housing, acutterhead mounted on the end of the shaft at the opposite extremity of thehousing, and-means for excluding chips and like particles thrown olf bythe cutter head from the bearings and motor'.

20. In a machine for making bolts and the like headed articles, incombination,'a bed frame, a header slide-mounted to reciprocate in saidframe, co-operating tools carried by `said slide and frame and adaptedto act upon blanks to head and shape the latter, one or more additionalblank fabricating tools operatively associated with the machine,

means to conduct blanks from the rst named tools to said fabricatingpositions, said means comprising a tube anda track, said tube beingproportioned adjacent said co-operating ytools to guide the blanksaxially and saidv track being disposed adjacent said fabricating toolsand communicating directly with said tube. l 21. In a machine foi`making bolts and the like headed artic1es,'a blank: guiding membercomprising a blank receiving part proportioned to restrict the blanks toaxial alignment and substan- 45 -tially horizontal movement along themember,

' and a blank discharging part connected thereto than the heads wherebythe Shanks of the Ablanks moving yhorizontal from said rst part drop 3flthrough said slot.

23. A transfer means for headed blanks comprising tWoadjoining trackportions at an angle to each other and pusher means at the junction ofsaid track portions, said pusher means com- 4prising oscillatingfingers, one of said fingers l oscillating in the plane of a blank headto bear .against the head and thereby move the blank,

and a second flngerNat an angle to the first oscillating below the planeof the blank head to bear against theA shank and thereby move the blank.l

24. A transfer means for headed blanks comprising two adjoining trackportions at an angle to each-other and pusher means at vthe junction ofsaid track portions, said pusher means comblanks approach theintersection on the iirst prising oscillating iingers, one of saidfingers oscillating in the plane of a blank part to bear thereon andmove the blank, and a second finger at an angle to the first finger andoscillating in a plane parallel to and spaced from the plane of thefirst finger to move the blank, the side of said first finger bearingagainst a part of the next adjacent blank portion in said first plane togate said blank during oscillation, and said second finger timed to bearagainst said next adjacent blank portion in said second plane during awithdrawal of said first finger from its gate position.

25. An elevating ,mechanism for headed blanks comprising, an aperturedelevator tube, a track adjacent said aperture, a reciprocating blankelevator within said tube, said elevator provided with a blank headsupporting portion and a shank receiving portion, and means adjacentsaid track to 'push blanks from the track through said aperture onto thereciprocating elevator.

26. A bolt blank elevating mechanism comprlsing, an apertured elevatortube, a track adjacent said aperture, a reciprocating blank elevatorwithin said tube, said elevator provided with a bolt head supportingportion and a shank re-V ceiving portion, means adjacent said track topush blanks from the track through said aperture onto the reciprocatingelevator comprising Vavpusher finger timed with and actuated by saidreciprocating elevator, and means in the tube above the aperturetorestrict downward motion the blanks raised by the reciprocatingelevator. 27. A transfer mechanism for headed blanks comprising areciprocating header slide, a relatively stationary bracket, a blankconductor extending from said slide to said bracket, a blank conductorsupport pivoted on said bracket, a track formed in said bracket inalignment with said blank conductor to receive blanks therefrom, theconductor being moved along said bracket track by header slidereciprocation, and means on said conductor to engage and advance blankson the lbracket track during said conductor movement.

28. A bolt blank advance mechanism comprising a bracket, an arcuatetrack formed therein, a pivoted support thereon,4 and a blank deliveringmember engaging said pivoted support and oscillating therewith, theblanks on said bracket track being engaged by said member andsuccessively' moved therealong by the oscillations of said member.

- 29. In combination, a frame, a reciprocating slide therein, and meansfor conducting blanks from said slide to a relatively iixed point onsaid frame comprising aiblank guiding member pivoted to said slide andsaid frame.

30. In combination, a frame, a reciprocating from said slide to arelatively fixed point on saidframe comprising a blank guiding memberpivoted to said slide and said frame, said conduct-- ing meanscomprising a blank receiving part proportioned to restrict the blanks toaxial alignment and movement along the member, and a blank dischargingpart proportioned to provide a track to guide the blanks with their axestransverse to the member and parallel to each other.

31. A transfer mechanism for headed blanks comprising e, pair ofintersecting blank tracks arranged to guide a series of -blanks so thattrack and recede from the intersection on the second, a pusher fingermoving in alignment with said pusher lingers /acting alternately to gatetudinal movement and moving 'into both blank and longitudinally of thesecond track to move receding blanks, a second pusher finger moving atan angle to the first finger and at an angle to the iirst track engagingand advancing approaching blanks into the path of the iirst pusher 5iinger..

32. A transfer mechanism for headed blanks comprising a pair ofintersecting blank tracks, a pusher nger moving in alignment With andlongitudinally of the second track t0 move blanks 10 away from theintersection of the tracks, a second pusher linger moving at an angle tothe rst finger andat an angle to the iirst track engaging and advancingblanks from the first track into the path of the first pusher finger,both'of said pusher iingers in blank moving position serving to gateblanks on the first track.

33. A transfer mechanism for headed blanks comprising a pair of blanktracks intersecting at an angle, a pusher finger mounted to move along20 one of said tracks, and a second pusher finger mounted to move intoboth tracks at their intersection to engage and advance a blank from thefirst track into the path of the first pusher finger. 34. A transfermechanism for headed blanks comprising a pair of blank tracksintersecting at an angle, a pusher finger mounted to move along one ofsaid tracks, a second pusher finger mounted to move into both tracks attheir intersection,

30 blanks at the same tide of the intersection.

35. A transfer mechanism for headed blanks comprising a pair of tracksintersecting at an angle, and a pusher finger mounted for longi- 35`tracks at their intersection and through one of said tracks in advanceof said intersection, said pusher linger being arranged to engage ablank in said one track positioned in advance of the intersection andmove the blank into said inter- 40 section.

36.` Ina machine having a bed frame provided with a die, areciprocating' slide provided with a tool co-operating with said die onsaid bed frame, means for conducting blanks from said slidev to 45 arelatively iixed point on the frame, comprising a blank guidingl memberhaving one end mounted on the slide and reciprocating therewith and theopposite end supported at said relatively fixed point on the frame. 537. A bolt blank pointing mechanism comprising a bolt blank holdingchuck and a pointing tool relatively reciprocable with respect to eachother to bring a blank into engagement with the tool and relativelyrotatable to point the blank, a pair of trackways positioned one oneachv side of the blank holding chuck,means to push a blank along onetrackway into the chuck and simultaneously eject a pointed blank fromthe chuck and push 6o it along the other trackway.

38. A bolt blank pointing mechanism comprising a bolt blank holdingchuck and a pointing tool relatively reciprocable with respect toeachother to bringa blank into engagement with the 65 tool and relativelyrotatable to point the blank, a pair of trackways positioned one on eachside of the blank holding chuck, means to push a blank along onetrackway. into the chuck and simultaneously eject a pointed blank fromthe 70 chuck and push it along the other trackway, means operating intimed relation to the relative reciprocation between the chuck and toolto increase the grip of the chuck on the blank as the chuck and toolapproach each other and to 75 decrease the grip of the chuck on theblank as the chuck and tool recede from each other.

39. A .bolt blank pointing mechanism comprising a blank holding chuckand a pointing tool relatively reciprocable with respect to each other,a blank guiding means positioned on one side of said chuck' to guideunpointed blanks into the chuck, a second blank guiding means positionedon the opposite side of said lchuck coplanar with said iirstguidingmeans to guide pointed bolt blanks from said pointing mechanism, saidsecond blank guiding means leading to a roll threading mechanism.

40. A bolt blank pointing mechanism comprising aA blank holding chuckand a pointing tool relatively reciprocable with respect to each other,a blank guiding means positioned on one side of said chuck to guideunpointed blanks into the chuck, a second blank guiding means positionedon the opposite side of said chuck to guide pointed bolt blanksfrom saidpointing mechanism, said second blank guiding means leading to a rollthreading mechanism, means to advance unpointed bolt blanks into saidchuck and simultaneously advance pointed blanks from the chuck and alongsaid second guiding means.

41. In a. machine of the class described, a reciprocating header slidehaving a passageway beginning at its working face arranged to receiveand guide a series of blanks acted upon by said slide and emergingthrough the upper surface of s aid slide, a guiding means to receivesaid blanks from said passageway and conduct the blanks across theslide.

42. A bolt blank pointing mechanism comprising a bolt blank holdingchuck and a pointingv tool relatively reciprocable and relativelyrotatable with respect to each other, said chuck comprising a pair ofjaws movable toward each other 5 to grip the blanktherebetween,resilient means to urge said jaws toward each other to resiliently gripthe blank when the blank and tool are separated from each other and asecond means to supplement the resilient the blank when the blank andtool are moved into engagement. l

43. A bolt blank pointing mechanism comprising a bolt blank holdingchuck having movable jaws with flanges thereon to engage the under sideof the head of the blank, and a pointing tool. said tool and chuckrelatively reciprocable and relatively rotatable, a pair of trackways,one trackway positioned on each side of said chuck, means to push ablank along one trackway into the chuck and simultaneously eject apointed blank from the chuck and move it along the other trackway, meansoperating in timed relation to the relative reciprocation between Kthe,chuck and tool to increase the grip of the chuck on the blank as thechuck and tool approach each other to prevent relative rotation of thechuck and blank and to decrease the grip of the chuck on the blank asthe chuck and tool recede from each other to facilitate the ejection ofa. pointed blank from the chuck.

JOHN H. FRIEDMAN.

grip to positively grip 10

